The direction of the current in an alternating current circuit

remains constant.

is direct.

changes repeatedly.

changes randomly.

3. You are walking in Paris alongside the Eiffel Tower and suddenly a croissant smacks you on the head and knocks you to the ground. From your handy dandy tourist guidebook you find that the height of the Eiffel Tower is 300.5 m.

Why is it that when the moon is farthest away from the sun, its the brightest? shouldn't it be the darkest if the earth's shadow blocks out the moon most of the time?

1. A rope is used to pull a metal box 20.0 m across the floor. The rope is held at an angle of 30.00 with the floor and a force of 525 N is applied. How much work does the force on the rope do?

What is the relative humidity when the dry-bulb temperature is 16°c and the wet-bulb temperature is 14°c?

The third floor of a house is 8 m above street level. How much work must a pulley system do to lift a 150kg oven at a constant speed to the third floor

When h2o is removed from the mixture does the equilibrium shift to the right to the left or is there no shift?

Which best explains why the acoustics underwater affect the Doppler effect? Sound waves can not transfer energy through water. Sound waves can not travel through water. The speed of sound is less in water than in air.

What is the part of the cell that stores food?

2. A circuit consists of a 10.0-ohm resistor, a 15.0-ohm resistor, and a 20.0-ohm resistor connected in parallel across a 9.00-volt battery. What is the equivalent resistance of this circuit? (1) 0.200 12 (3) 4.62 1 (2) 1.95.22 (4) 45.012

What technology makes up the transducer? a. A phased array c. A PET scan b. An x-ray d. A laser